/* 英雄区 (突出短信产品) */
    .hero {
      display: flex;
      align-items: center;
      gap: 40px;
      padding: 60px 0 40px;
      flex-wrap: wrap;
    }

    .hero-content {
      flex: 1 1 400px;
    }

    .hero-content h1 {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      background: linear-gradient(145deg, #0f1825, #2563eb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 24px;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: #475569;
      max-width: 550px;
      margin-bottom: 32px;
    }

    .hero-stats {
      display: flex;
      gap: 36px;
      margin-top: 30px;
    }

    .stat-item {
      display: flex;
      flex-direction: column;
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 700;
      color: #1e293b;
    }

    .stat-label {
      color: #64748b;
      font-size: 0.95rem;
    }

    .hero-image {
      flex: 1 1 300px;
      background: linear-gradient(145deg, #dbeafe, #eff6ff);
      border-radius: 40px;
      padding: 30px 25px;
      box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15);
      display: flex;
      flex-direction: column;
      gap: 16px;
      min-width: 280px;
    }

    .message-card {
      background: white;
      border-radius: 24px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 14px;
      box-shadow: 0 6px 12px -8px rgba(0,0,0,0.1);
      border: 1px solid #ffffff80;
      backdrop-filter: blur(2px);
    }

    .message-card .avatar {
      width: 42px;
      height: 42px;
      border-radius: 42px;
      background: #3b82f6;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: 600;
    }

    .message-preview {
		width: calc(100% - 60px);
    }  	
    .message-preview p {
      font-size: 0.9rem;
      font-weight: 500;
    }
    .message-preview small {
      color: #94a3b8;
      font-size: 0.75rem;
    }

    .badge-blue {
      background-color: #3b82f6;
      color: white;
      border-radius: 40px;
      padding: 4px 12px;
      font-size: 0.8rem;
      font-weight: 600;
      display: inline-block;
    }

    /* 产品板块 (短信产品) */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .section-title i {
      color: #3b82f6;
      font-size: 2rem;
    }
    .section-sub {
      color: #475569;
      max-width: 700px;
      margin-bottom: 48px;
      font-size: 1.1rem;
    }

    .product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 28px;
      margin: 48px 0;
    }

    .product-card {
      background: white;
      border-radius: 28px;
      padding: 32px 24px;
      box-shadow: 0 10px 30px -12px rgba(0,0,0,0.08);
      transition: all 0.2s ease;
      border: 1px solid #f1f5f9;
    }
    .product-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 25px 35px -12px #3b82f640;
      border-color: #b3d0ff;
    }
    .product-icon {
      background: #eef2ff;
      width: 64px;
      height: 64px;
      border-radius: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
      color: #3b82f6;
      font-size: 2rem;
    }
    .product-card h3 {
      font-size: 1.5rem;
      margin-bottom: 14px;
    }
    .product-card p {
      color: #475569;
      margin-bottom: 24px;
    }
    .product-tag {
      color: #3b82f6;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 解决方案板块 */
    .solution-showcase {
      background: #ffffff;
      border-radius: 48px;
      padding: 56px 40px;
      margin: 60px 0;
      box-shadow: 0 15px 40px -20px rgba(0,47,91,0.1);
      border: 1px solid #e9eef3;
    }

    .solution-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 40px;
      align-items: center;
    }
    .solution-text {
      flex: 1 1 300px;
    }
    .solution-text h2 {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 24px;
      display: flex;
      gap: 8px;
    }
    .solution-items {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .solution-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .solution-item i {
      color: #3b82f6;
      background: #eef2ff;
      padding: 12px;
      border-radius: 16px;
      font-size: 1.2rem;
    }
    .solution-item h4 {
      margin-bottom: 4px;
    }
    .solution-gallery {
      flex: 1 1 300px;
      background: #f0f7ff;
      border-radius: 40px;
      padding: 30px;
      text-align: center;
      min-height: 240px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .industry-badge {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 20px;
    }
    .industry-badge span {
      background: white;
      border-radius: 40px;
      padding: 8px 24px;
      font-weight: 500;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }

    /* API 文档板块 */
    .api-docs {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      background: linear-gradient(135deg, #0b1120 0%, #1a2639 100%);
      border-radius: 48px;
      padding: 56px 48px;
      color: white;
      margin: 70px 0;
    }
    .api-left {
      flex: 1 1 300px;
    }
    .api-left h2 {
      font-size: 2.5rem;
      font-weight: 600;
      margin-bottom: 20px;
      display: flex;
      gap: 8px;
    }
    .api-left p {
      color: #b0c4de;
      font-size: 1.1rem;
      max-width: 400px;
    }
    .api-card {
      flex: 1 1 300px;
      background: rgba(255,255,255,0.05);
      backdrop-filter: blur(8px);
      border-radius: 36px;
      padding: 36px 28px;
      border: 1px solid #2d3a5e;
    }
    .api-card .code-snippet {
      background: #02061780;
      border-radius: 20px;
      padding: 20px;
      font-family: 'SF Mono', 'Fira Code', monospace;
      font-size: 0.9rem;
      border: 1px solid #3b4b70;
      margin: 24px 0;
    }
    .api-card .btn-outline-light {
      border: 1px solid #b0c4de;
      color: white;
      padding: 12px 30px;
      border-radius: 36px;
      text-decoration: none;
      font-weight: 600;
      display: inline-block;
    }
    .api-card .btn-outline-light i {
      margin-right: 8px;
    }
    .api-card .btn-outline-light:hover {
      background: white;
      color: #0b1120;
    }

    /* 关于我们板块 (简洁) */
    .about-section {
      display: flex;
      gap: 50px;
      margin: 80px 0;
      flex-wrap: wrap;
      background: #f1f6fd;
      border-radius: 48px;
      padding: 56px 48px;
    }
    .about-text {
      flex: 2 1 300px;
    }
    .about-text h2 {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .about-text p {
      color: #334155;
      font-size: 1.1rem;
      margin-bottom: 24px;
      max-width: 600px;
    }
    .contact-info {
      display: flex;
      gap: 40px;
      margin-top: 30px;
      flex-wrap: wrap;
    }
    .contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .about-stats {
      flex: 1 1 200px;
      background: white;
      border-radius: 32px;
      padding: 36px 28px;
      box-shadow: 0 15px 25px -20px rgba(0,0,0,0.1);
    }
    .stat-line {
      margin: 20px 0;
    }
    .stat-line .label {
      color: #64748b;
    }